SIRIUS 3RA21/22 load feeders 
  6.6 Mounting 
SIRIUS Innovations 
System Manual, 01/2011, A8E56203870002-03 
599 
Types of adapter 
Busbar adapters and device holders: Busbar adapters are available with or without pre-
assembled connecting cables. Busbar adapters without connecting cables are known as 
"device holders". 
Busbar adapters and device holders are available in mounting heights of 200 mm and 
260 mm. All device combinations can be mounted on the long adapter. The short adapter 
can only be used for size S00 devices with screw-type connection systems.  
 
 
1  Busbar adapter 
2  Device holder 
Figure 6-5  Busbar adapter and device holder, two mounting heights 
 
Pairs of adapters: A pair of adapters comprising a busbar adapter and a device holder is 
required for the busbar mounting of a reversing contactor assembly. The pair of adapters 
can be assembled from individual components without the need for tools.  
 
Figure 6-6  Pair of adapters for reversing contactor assembly (busbar adapter and device holder)